Switch supply, convert AC 110V / 220V to DC 48V. Dual input voltage: AC 110V / 220V. There is a switch, select the voltage before . Continuous and precise output voltage. Short circuit protection, over load protection (105% ~ 150%), over voltage protection (115% ~ 135%). Widely as the supply used for LED Strips, LED display, poster, industrial plants, etc. ONLY INDOOR ! Specifications: Material: Metal case Input voltage: AC 110V / 220V 15% Input frequency: 50 / 60Hz input voltage: Cold 25A @ 115V AC 50A @ 230V AC output voltage: DC 48V setting the output voltage: 10% output current: 8.3A current range: 0 ~ 8.3A output : 400 W working temperature: - 40 ~ 65 degrees Celsius temperature: -20 C - + 60 C Humidity: 20% ~ 90% RH non-condensing Item size: 21.4 * 11.3 * 4.8cm / 7.9 * 3.9 * 1.9in item weight: 704g Package List: 1 * DC converter Note:Light and different displays may the color of the item in the a little different from the real thing.The measurement allowed error is +/- 1-3 cm.